<div id="div1">111111111</div>
<button onclick="handleClick()">OK</button>
<script type="text/javascript" charset="utf-8">
const div1 = document.querySelector('#div1');
const observe = new MutationObserver((mutations) => {
console.log('hhhh', mutations)
}).observe(div1, {
attributes: true
})
function handleClick() {
div1.setAttribute('style', 'color: red')
div1.setAttribute('data-name', 'abc')
}
</script>
标签：const,元素,setAttribute,mutations,observe,监听,div1,属性 From： https://www.cnblogs.com/chicidol/p/17205546.html